CHECK HARNESS BETWEEN ECM AND TUMBLE GENERATOR VALVE ASSEMBLY LH CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the connectors from the ECM.

3) Measure the voltage between ECM and chassis ground.

Connector & terminal

(B137) No. 12 (+) — Chassis ground (−):

(B137) No. 13 (+) — Chassis ground (−):

QUESTION

Is the voltage 5 V or more?

Yes No

Repair the short circuit to power in the harness between ECM and tumble generator valve assembly LH.

Replace the tumble generator valve assembly LH.